that thing definitely did not work for me at all. waste of time and a huge SCAM if you don't know how to hack it. it costs like 2 dollars everytime you listen to a "dose", and it doesn't even work at all. just a 30 minute waste of time. the only reason you feel different and music sounds different is because you have this annoying buzzing sound blasting in your ears for 30 minutes. fuck that.